| '''OpenGL extension EXT.bindable_uniform |
| |
| This module customises the behaviour of the |
| OpenGL.raw.GL.EXT.bindable_uniform to provide a more |
| Python-friendly API |
| |
| Overview (from the spec) |
| |
| This extension introduces the concept of bindable uniforms to the OpenGL |
| Shading Language. A uniform variable can be declared bindable, which |
| means that the storage for the uniform is not allocated by the |
| compiler/linker anymore, but is backed by a buffer object. This buffer |
| object is bound to the bindable uniform through the new command |
| UniformBufferEXT(). Binding needs to happen after linking a program |
| object. |
| |
| Binding different buffer objects to a bindable uniform allows an |
| application to easily use different "uniform data sets", without having to |
| re-specify the data every time. |
| |
| A buffer object can be bound to bindable uniforms in different program |
| objects. If those bindable uniforms are all of the same type, accessing a |
| bindable uniform in program object A will result in the same data if the |
| same access is made in program object B. This provides a mechanism for |
| 'environment uniforms', uniform values that can be shared among multiple |
| program objects. |
| |
| The official definition of this extension is available here: |
| http://www.opengl.org/registry/specs/EXT/bindable_uniform.txt |
| ''' |
| from OpenGL import platform, constant, arrays |
| from OpenGL import extensions, wrapper |
| import ctypes |
| from OpenGL.raw.GL import _types, _glgets |
| from OpenGL.raw.GL.EXT.bindable_uniform import * |
| from OpenGL.raw.GL.EXT.bindable_uniform import _EXTENSION_NAME |
|
|
| def glInitBindableUniformEXT(): |
| '''Return boolean indicating whether this extension is available''' |
| from OpenGL import extensions |
| return extensions.hasGLExtension( _EXTENSION_NAME ) |
|
|
|
|
| |
